Left, right, right three-section type spiral winding method and structure of energy-saving filament

Abstract

The invention discloses a left-right-right three-stage helical winding method and a left-right-right three-stage helical winding structure for an energy saving filament. The structure comprises a helical filament body (1), wherein, the filament body (1) consists of a mandrel (2) and a filament secondary winding body (3) which is wound on the periphery of the mandrel (2); the filament secondary winding body (3) consists of a molybdenum core wire (4) and a filament primary winding body (5) which is wound on the periphery of the molybdenum core wire (4); the filament primary winding body (5) consists of a molybdenum core wire (6) and a tungsten filament (7) which is wound on the periphery of the molybdenum core wire (6); the tungsten filament (7) is wound on the molybdenum core wire (6) by means of left screw; the filament primary winding body (5) is wound on the molybdenum core wire (4) by means of right screw; the filament secondary winding body (3) is wound on the mandrel (2) by means of right screw. The filament adopts the left-right-right three-stage helical winding method and is characterized in difficult distortion, deformation, formation of a ring and so on after filament stretching, thereby the product qualification ratio of lighting tubes is improved; a large number of labors used for repair are reduced; the production cost is greatly reduced.

Description

technical field [0001] The invention relates to a winding method of a filament, and at the same time relates to a winding structure of a filament, in particular to a left, right and right three-stage spiral winding method and structure of an energy-saving filament. Background technique [0002] At present, the filaments of energy-saving lamps usually adopt a three-stage spiral winding method of left, left and left. The problem with this winding method is that the coil of the filament is easily twisted and combined after stretching, causing a short circuit of the filament, which seriously affects the qualified rate of the stretched filament, and because the filament of the winding requires a lot of manual repairs, the labor cost is high, and at the same time The electronic powder coated in the filament spiral is easy to be touched and falls off during repair, which directly affects the life of the lamp tube. Contents of the invention [0003] The technical problem to be so...

AI Technical Summary

Problems solved by technology

The problem with this winding method is that the coils of the filament are easily twisted and twisted after stretching, resulting in a short circuit of the filament, which seriously affects the qualified rate of the stretched filament, and because the filament of the stretched loop requires a lot of manual repairs, the labor cost is high, and at the same time The electronic powder coated in the filament spiral is easy to be touched and falls off during repair, which directly affects the life of the lamp tube

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